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Vishay General Semiconductor - Diodes Division P4SMA510AHE3_A/I
- Part No.:
- P4SMA510AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510AHE3_A/I.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA510AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for high-energy surge protection on power and signal lines. It features a 510 V breakdown voltage (VBR = 485–535 V at 1 mA), 400 W peak pulse power (10/1000 µs), clamping voltage of 698 V at 0.43 A, and operates across -65 °C to +150 °C junction temperature range - deployed in automotive power rail and industrial sensor interface protection.
For engineers reviewing the P4SMA510AHE3_A/I datasheet, P4SMA510AHE3_A/I pinout, P4SMA510AHE3_A/I application, or P4SMA510AHE3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, SMA (DO-214AC) package details, clamping performance under transient stress, and direct alternative options for high-voltage TVS selection.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients. Its 510 V standoff capability targets high-voltage DC bus and auxiliary power supply lines where sustained overvoltage events exceed 434 V.
The device is rated for 400 W peak pulse power (10/1000 µs waveform) with derating above 25 °C ambient, and meets J-STD-020 MSL Level 1 (260 °C reflow peak). It is AEC-Q101 qualified (HE3 suffix), RoHS-compliant, and specified for use with 0.2" × 0.2" copper pads per terminal to sustain thermal dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1 mA - defines precise voltage threshold at which avalanche conduction begins, critical for coordination with downstream overvoltage protection circuits |
| VWM | 434 V - maximum continuous reverse working voltage; ensures no leakage conduction during normal operation up to this DC or RMS level |
| VC @ IPPM | 698 V at 0.43 A - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected IC or MOSFET |
| PPPM | 400 W - peak pulse power handling capacity; validates robustness against IEC 61000-4-5 Level 4 (4 kV) surges when properly mounted |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine); supports protection of rectifier stages or DC input filters |
| TJ max | +150 °C - maximum junction temperature; enables reliable operation in under-hood automotive or enclosed industrial enclosures |
| RθJA | 120 °C/W - thermal resistance junction-to-ambient; confirms need for PCB copper thermal relief or heatsinking in sustained surge environments |
Pinout & Package
Package: SMA (DO-214AC) - surface-mount, low-profile plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, and cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference in unidirectional TVS configuration | Provides return path for surge current during clamping; must be routed with low-inductance trace to minimize voltage overshoot |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 48 V rail, CAN bus, sensor VCC) | Acts as the "protected node" side; clamping occurs between cathode and anode when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS power domains |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under humidity and thermal stress, critical for 15+ year field life |
| MSL Level 1 (260 °C) | Enables single-reflow assembly without moisture sensitivity concerns - eliminates baking requirement in high-volume SMT lines |
| 400 W peak pulse power | Supports IEC 61000-4-5 4 kV surge immunity on 50 Ω source impedance lines when used with recommended 5.0 mm × 5.0 mm copper pads |
| Low incremental surge resistance | Minimizes dynamic voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for sensitive gate drivers |
Applications
| Automotive 48 V Power Distribution | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-fed ECUs and DC-DC converters from load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48 V rail and chassis ground to clamp surges up to 120 V peak. Use Value: Withstands 400 W pulses and maintains VC ≤ 698 V, ensuring downstream PMICs and microcontrollers remain within absolute maximum ratings. |
Use Scenario: Safeguarding 0–10 V or 4–20 mA analog input channels in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: High-VWM TVS shunting transient energy before it reaches precision op-amps or ADC front-ends. Use Value: 434 V VWM prevents false triggering during normal operation while clamping fast transients below 700 V to preserve signal integrity. |
| Telecom Remote Radio Unit Power | Renewable Energy Inverter DC Link Monitoring |
|
Use Scenario: Shielding remote radio unit (RRU) power inputs from lightning-induced surges on outdoor feeder cables. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC/DC isolation, coordinated with MOV and gas discharge tube. Use Value: Fast <1 ns response and 698 V clamping limit ensure protection of isolated gate drivers and digital isolators without propagation delay penalties. |
Use Scenario: Protecting voltage sense circuitry monitoring high-voltage DC links (e.g., 600–800 V) in solar inverters and EV chargers. IC Role / Device Role / Timing Role: High-breakdown TVS placed across differential sense resistors or isolated amplifier inputs. Use Value: 510 V VBR provides safe margin above nominal DC link voltage while maintaining tight clamping to prevent amplifier saturation or latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510A | Same VBR range (485–535 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (0.67 A), RθJA = 85 °C/W | Better thermal performance and higher surge rating; requires larger PCB footprint than SMA | Select SMBJ510A when higher pulse energy handling or improved thermal dissipation is required and board space permits |
| SMCJ510A | Same VBR, but SMC package (DO-214AB); 1500 W PPPM, IPPM = 2.0 A, RθJA = 40 °C/W | Designed for primary-level surge suppression in AC/DC front-ends or motor drives; significantly higher cost and size | Choose SMCJ510A only for mission-critical, high-energy locations such as grid-tied inverter DC inputs or industrial mains interfaces |
Compared with P4SMA510AHE3_A/I, SMBJ510A offers higher surge capacity in a slightly larger package, while SMCJ510A delivers threefold pulse power in a substantially larger footprint - making P4SMA510AHE3_A/I the optimal balance of AEC-Q101 compliance, 400 W capability, and compact SMA mounting for space-constrained 48 V and industrial HV monitoring designs.
Availability
P4SMA510AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, telecom remote units, and renewable energy systems requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for P4SMA510AHE3_A/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA series is engineered for surface-mount transient suppression in automotive, industrial, and telecom infrastructure - delivering standardized high-voltage TVS performance with AEC-Q101 qualification and JEDEC-compliant packaging.
FAQ
What is the breakdown voltage tolerance of the P4SMA510AHE3_A/I?
The P4SMA510AHE3_A/I has a specified breakdown voltage range of 485 V to 535 V at 1 mA test current, representing ±5% tolerance around the nominal 510 V rating. This tight VBR window ensures predictable clamping behavior in high-voltage protection circuits and allows accurate coordination with secondary protection elements like varistors or crowbar circuits. The P4SMA510AHE3_A/I datasheet confirms this range under standard test conditions (TA = 25 °C).
Is the P4SMA510AHE3_A/I suitable for automotive applications?
Yes, the P4SMA510AHE3_A/I is AEC-Q101 qualified (indicated by the HE3 suffix) and specifically designed for automotive use, including 48 V mild-hybrid systems, body control modules, and ADAS power domains. It passes rigorous stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. The P4SMA510AHE3_A/I also meets J-STD-020 MSL Level 1 for lead-free reflow compatibility.
What is the maximum clamping voltage of the P4SMA510AHE3_A/I during a surge event?
The P4SMA510AHE3_A/I exhibits a maximum clamping voltage (VC) of 698 V at its rated peak pulse current of 0.43 A under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per terminal. The P4SMA510AHE3_A/I's low incremental surge resistance contributes to this controlled clamping performance, limiting voltage overshoot on protected lines.
Does the P4SMA510AHE3_A/I have bidirectional capability?
No, the P4SMA510AHE3_A/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VBR and blocks forward current except during surge events. For bidirectional protection, Vishay offers the P4SMA510CA variant. The P4SMA510AHE3_A/I's cathode band marking identifies polarity, and it must be oriented with cathode toward the protected line and anode to ground.
What is the thermal resistance of the P4SMA510AHE3_A/I, and how does it affect layout?
The P4SMA510AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on standard PCB pads. This relatively high value means significant self-heating occurs during repetitive surges; therefore, layout must include minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal and avoid narrow traces. The P4SMA510AHE3_A/I's thermal performance is validated per JEDEC standards and directly impacts sustained surge duty cycle capability.
P4SMA510AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 430mA
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA510AHE3_A/I FAQ
1.How can I place an order for P4SMA510AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510AHE3_A/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4SMA510AHE3_A/I reliable?
The price and inventory of P4SMA510AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA510AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA510AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510AHE3_A/I?
P4SMA510AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510AHE3_A/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4SMA510AHE3_A/I?
For technical support, including P4SMA510AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510AHE3_A/I requirements.
6.How does Aetrix verify that P4SMA510AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA510AHE3_A/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4SMA510AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA510AHE3_A/I?
All P4SMA510AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510AHE3_A/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4SMA510AHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA510AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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